{"id":4936,"date":"2023-10-14T08:19:34","date_gmt":"2023-10-14T08:19:34","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&p=4936"},"modified":"2024-09-24T06:36:58","modified_gmt":"2024-09-24T06:36:58","slug":"importance-compliance-ensuring-crane-wheel-selection-aligns-chinese-standards","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/cs\/posts\/importance-compliance-ensuring-crane-wheel-selection-aligns-chinese-standards\/","title":{"rendered":"D\u016fle\u017eitost shody: Zaji\u0161t\u011bn\u00ed souladu v\u00fdpo\u010dtu je\u0159\u00e1bov\u00e9ho kola s \u010d\u00ednsk\u00fdmi standardy"},"content":{"rendered":"
\n
\n\nJe\u0159\u00e1b je d\u016fle\u017eit\u00fd stroj\u00edrensk\u00fd stroj pro manipulaci s materi\u00e1lem, jeho oblasti pou\u017eit\u00ed jsou pom\u011brn\u011b \u0161irok\u00e9. Zahrnuje lidskou v\u00fdrobu a \u017eivot, pr\u016fmyslov\u00e9 a t\u011b\u017eebn\u00ed podniky, v\u00fdstavbu n\u00e1rodn\u00ed obrany, letectv\u00ed a mnoho dal\u0161\u00edch aspekt\u016f. Je\u0159\u00e1bov\u00e1 kola<\/a> jako jeho pochoz\u00ed mechanismus p\u0159i realizaci prvk\u016f m\u00e1 n\u00e9st pracovn\u00ed zat\u00ed\u017een\u00ed za\u0159\u00edzen\u00ed a realizovat kl\u00ed\u010dov\u00e9 komponenty manipulace s materi\u00e1lem. Proto je v\u00fdpo\u010det a v\u00fdb\u011br je\u0159\u00e1bov\u00fdch kol z\u00e1sadn\u00ed pro zaji\u0161t\u011bn\u00ed stability a bezpe\u010dnosti stroje.<\/span>\n\nV tomto p\u0159\u00edsp\u011bvku vysv\u011btl\u00edme, jak v\u00fdpo\u010dtem ur\u010dit pracovn\u00ed pr\u016fm\u011br je\u0159\u00e1bov\u00fdch kol a ov\u011b\u0159\u00edme, zda nosnost kol spl\u0148uje po\u017eadavky na pou\u017eit\u00ed a dal\u0161\u00ed prvky. Kl\u00ed\u010dov\u00e9 parametry a kalkula\u010dn\u00ed vzorce jsou pops\u00e1ny v \u010dl\u00e1nku, kter\u00e9 v\u00e1m pomohou prov\u00e9st spr\u00e1vn\u00fd v\u00fdpo\u010det a v\u00fdb\u011br ve skute\u010dn\u00e9m projektu.<\/span>\n\nN\u00e1vrh, v\u00fdb\u011br a v\u00fdroba dvojkol\u00ed by m\u011bla spl\u0148ovat po\u017eadavky p\u0159\u00edslu\u0161n\u00fdch n\u00e1rodn\u00edch norem:\n
    \n \t
  1. GB\/T3811-2008 \u300aK\u00f3d konstrukce je\u0159\u00e1bu\u300b;<\/li>\n \t
  2. JB\/T6392-2008 \u300aJe\u0159\u00e1bov\u00e9 kolo\u300b;<\/li>\n \t
  3. \u00a0YB\/T5055-1993 \u300aJe\u0159\u00e1bov\u00e9 kolejnice\u300b;<\/li>\n \t
  4. GB2585-2007 \u300aZa tepla v\u00e1lcovan\u00e9 ocelov\u00e9 kolejnice pro \u017eeleznice\u300b;<\/li>\n \t
  5. GB\/T699-2015 \u300aVysoce kvalitn\u00ed uhl\u00edkov\u00e1 konstruk\u010dn\u00ed ocel\u300b;<\/li>\n \t
  6. GB\/T11352-2009 \u300aD\u00edly z lit\u00e9 uhl\u00edkov\u00e9 oceli pro v\u0161eobecn\u00e9 stroj\u00edrensk\u00e9 \u00fa\u010dely\u300b;<\/li>\n \t
  7. GB\/T1184-1996 \u300aTolerance pro tvar a polohu, neanotovan\u00e9 toleran\u010dn\u00ed hodnoty\u300b;<\/li>\n \t
  8. GB\/T1801-1999 \u300aOmezen\u00ed a p\u0159izp\u016fsoben\u00ed V\u00fdb\u011br z\u00f3n tolerance a p\u0159izp\u016fsoben\u00ed\u300b;<\/li>\n<\/ol>\n

    N\u00ed\u017ee jsou uvedeny podrobn\u00e9 kroky pro v\u00fdpo\u010det kola:<\/span><\/h3>\n
      \n \t
    1. Shrom\u00e1\u017ed\u011bte data: Nejprve ur\u010dete pracovn\u00ed zat\u00ed\u017een\u00ed kola je\u0159\u00e1bu, velikost dr\u00e1hy, formu kontaktu kola a dr\u00e1hy, institucion\u00e1ln\u00ed pracovn\u00ed \u00farove\u0148, rychlost ch\u016fze, materi\u00e1l kola atd.<\/li>\n \t
    2. Pou\u017e\u00edt vzorec: pou\u017eijte vzorec, tyto parametry jsou do vzorce spr\u00e1vn\u011b dosazeny.<\/span><\/li>\n \t
    3. V\u00fdsledky v\u00fdpo\u010dtu: Podle poskytnut\u00fdch \u00fadaj\u016f a vzorce se kolo vypo\u010d\u00edt\u00e1 a ov\u011b\u0159\u00ed a zda v\u00fdsledek spl\u0148uje po\u017eadavky, je odvozeno z v\u00fdsledk\u016f v\u00fdpo\u010dtu a podm\u00ednek posouzen\u00ed ve vzorci.<\/li>\n<\/ol>\n

      V\u00fdpo\u010dtov\u00fd vzorec kola:<\/h3>\nI. Stanoven\u00ed v\u00fdpo\u010dtov\u00e9ho zat\u00ed\u017een\u00ed na \u00fanavu kola:\n\n\"vzorec\"\n\nVe vzorci<\/span>\n\nPC<\/sub><\/span> \u2014 v\u00fdpo\u010detn\u00ed zat\u00ed\u017een\u00ed na \u00fanavu kola (N);\nPmax<\/sub><\/span> \u2014 maxim\u00e1ln\u00ed tlak v kolech p\u0159i norm\u00e1ln\u00edm provozu je\u0159\u00e1bu (N); Pmin<\/sub> \u2014 minim\u00e1ln\u00ed tlak kol, kdy\u017e je\u0159\u00e1b pracuje norm\u00e1ln\u011b (N);\n\nII.V\u00fdpo\u010det kontaktn\u00ed pevnosti kola:<\/span>\n\nKontaktn\u00ed formul\u00e1\u0159 pro kola a p\u00e1s p\u0159ilo\u017een\u00fd obr\u00e1zek:\n\n\"Kontaktn\u00ed\n\n1. P\u0159\u00edpustn\u00fd tlak kola pro kontakt veden\u00ed: Pc\u2264K1\u00d7D\u00d7L\u00d7C1\u00d7C2 Kde PC<\/sub> \u2014- v\u00fdpo\u010detn\u00ed zat\u00ed\u017een\u00ed \u00fanavy kola (N); K1<\/sub> \u2014\u2013 p\u0159\u00edpustn\u00e9 kontaktn\u00ed nap\u011bt\u00ed veden\u00ed z\u00e1visl\u00e9 na materi\u00e1lu (N\/mm2), zvolen\u00e9 podle tabulky 1; D \u2014\u2013 pr\u016fm\u011br kola (mm); L\u2014\u2014 efektivn\u00ed kontaktn\u00ed d\u00e9lka mezi kolem a kolejnic\u00ed; C1<\/sub>\u2014\u2013 rychlostn\u00ed koeficient, zvolen\u00fd podle tabulky 2; C2<\/sub>\u2014\u2013 koeficient pracovn\u00ed \u00farovn\u011b, zvolen\u00fd podle tabulky 3; 2. P\u0159\u00edpustn\u00fd tlak kola pro bodov\u00fd kontakt:\n\n\"vzorec\"\n\nKde PC<\/sub>\u2014- v\u00fdpo\u010detn\u00ed zat\u00ed\u017een\u00ed \u00fanavy kola (N); K2<\/sub> \u2014\u2013 p\u0159\u00edpustn\u00e9 bodov\u00e9 kontaktn\u00ed nap\u011bt\u00ed z\u00e1visl\u00e9 na materi\u00e1lu (N\/mm2), zvolen\u00e9 podle tabulky 1; R \u2014\u2013 polom\u011br zak\u0159iven\u00ed, vezm\u011bte polom\u011br zak\u0159iven\u00ed kola a polom\u011br zak\u0159iven\u00ed stopy ve v\u011bt\u0161\u00ed hodnot\u011b (mm); M\u2014\u2014 pom\u011br horn\u00edho povrchu dr\u00e1hy k polom\u011bru zak\u0159iven\u00ed kola (r\/R), zvolen\u00fd podle tabulky 4; C1<\/sub>\u2014\u2013 rychlostn\u00ed koeficient, zvolen\u00fd podle tabulky 2; C2<\/sub>\u2014\u2013 koeficient pracovn\u00ed \u00farovn\u011b, zvolen\u00fd podle tabulky 3; Rozpis vypo\u010dten\u00fdch koeficient\u016f:\n\n\"St\u016fl\"\n\nPozn\u00e1mka: 1. \u03c3b<\/sub> je pevnost materi\u00e1lu v tahu (N\/mm2<\/sup>); 2. Ocelov\u00e1 kola by obecn\u011b m\u011bla b\u00fdt tepeln\u011b zpracov\u00e1na, tvrdost b\u011bhounu doporu\u010den\u00e1 pro HB = 300 ~ 380, hloubka kalic\u00ed vrstvy 15 mm ~ 20 mm, p\u0159i ur\u010dov\u00e1n\u00ed p\u0159\u00edpustn\u00e9 hodnoty vezm\u011bte \u03c3b<\/sub> kdy\u017e materi\u00e1l nen\u00ed tepeln\u011b zpracov\u00e1n; 3. Kdy\u017e materi\u00e1l kola p\u0159ij\u00edm\u00e1 tv\u00e1rnou litinu; \u03c3b<\/sub>\u2265500N\/mm2<\/sup> materi\u00e1l, K1<\/sub>, K2<\/sub> hodnota se vol\u00ed podle \u03c3b<\/sub>= 500 N\/mm2<\/sup>.\n\n\"St\u016fl\"\n\n\"St\u016fl\"\n\n\"St\u016fl\"\n\nPozn\u00e1mka: 1. Je-li r\/R jak\u00e1koli jin\u00e1 hodnota, m-hodnota se vypo\u010d\u00edt\u00e1 interpolac\u00ed; 2. r je mal\u00e1 hodnota polom\u011bru zak\u0159iven\u00ed sty\u010dn\u00e9 plochy V\u00fd\u0161e uveden\u00e9 v\u00fdpo\u010dty lze pou\u017e\u00edt pro ov\u011b\u0159en\u00ed ov\u011b\u0159en\u00ed kol nastaven\u00e9ho pr\u016fm\u011bru, za \u00fa\u010delem stanoven\u00ed efektivn\u00ed maxim\u00e1ln\u00ed \u00fanosnosti kol a p\u0159im\u011b\u0159enosti rozm\u011bry (pr\u016fm\u011br kol, kol a kolejnice s rozm\u011bry atd.).\n\n\"St\u016fl\"\n\n\"St\u016fl\"\n\nP\u0159ipojen\u00e1 tabulka s\u00e9rie je\u0159\u00e1bov\u00fdch kol:\n\n\"P\u0159ipojen\u00fd\n

      Speci\u00e1ln\u00ed typy v\u00fdb\u011bru je\u0159\u00e1bov\u00fdch kol<\/span><\/h3>\nJe\u0159\u00e1b v nev\u00fdbu\u0161n\u00e9m proveden\u00ed: metoda v\u00fdpo\u010dtu je\u0159\u00e1bov\u00e9ho kola v nev\u00fdbu\u0161n\u00e9m proveden\u00ed, jak je uvedeno v\u00fd\u0161e. P\u0159i v\u00fdb\u011bru podle r\u016fzn\u00fdch \u00farovn\u00ed nev\u00fdbu\u0161nosti lze zvolit r\u016fznou formu povrchu kola. Nap\u0159\u00edklad p\u0159i \u00farovni nev\u00fdbu\u0161nosti \u2161 C by se b\u011bhoun kola a \u010d\u00e1st r\u00e1fku nem\u011bly pou\u017e\u00edvat kv\u016fli n\u00e1razu, t\u0159en\u00ed a vzn\u00edcen\u00ed v\u00fdbu\u0161n\u00fdch sm\u011bs\u00ed plyn\u016f ze slitiny m\u011bdi nebo z jin\u00fdch materi\u00e1l\u016f vyroben\u00fdch kol. Obecn\u011b plat\u00ed, \u017ee kdy\u017e je \u00farove\u0148 ochrany proti v\u00fdbuchu ni\u017e\u0161\u00ed ne\u017e \u2161C, povrch kol by nem\u011bl b\u00fdt speci\u00e1ln\u011b upravov\u00e1n.<\/span>\n\n\u00a0<\/span>\n

      D\u016fle\u017eit\u00e9 pozn\u00e1mky<\/span><\/h3>\nP\u0159i v\u00fdpo\u010dtech v\u00fdb\u011bru kola m\u011bjte na pam\u011bti n\u00e1sleduj\u00edc\u00ed d\u016fle\u017eit\u00e9 skute\u010dnosti:<\/span>\n
        \n \t
      • Typ kola: R\u016fzn\u00e9 typy kol maj\u00ed r\u016fzn\u00e9 v\u00fdkonnostn\u00ed charakteristiky, proto se ujist\u011bte, \u017ee pro v\u00fdpo\u010det pou\u017e\u00edv\u00e1te parametry spr\u00e1vn\u00e9ho typu kola.<\/span><\/li>\n \t
      • Po\u017eadavky projektu: V z\u00e1vislosti na konkr\u00e9tn\u00edch po\u017eadavc\u00edch projektu a p\u016fdn\u00edch podm\u00ednk\u00e1ch m\u016f\u017ee b\u00fdt nutn\u00e9 upravit pr\u016fm\u011br kola je\u0159\u00e1bu. P\u0159\u00edli\u0161 mal\u00fd pr\u016fm\u011br kola m\u016f\u017ee zp\u016fsobit nestabilitu stroje, zat\u00edmco p\u0159\u00edli\u0161 velk\u00fd pr\u016fm\u011br m\u016f\u017ee zv\u00fd\u0161it v\u00fd\u0161ku stroje a omezit rozsah jeho pou\u017eit\u00ed.<\/li>\n \t
      • Odborn\u00e1 konzultace: Pokud si nejste jisti, jak z\u00edskat spr\u00e1vn\u00e9 parametry nebo jak prov\u00e9st v\u00fdpo\u010dty, pora\u010fte se s profesion\u00e1ln\u00edm in\u017een\u00fdrem nebo v\u00fdrobcem, kter\u00fd v\u00e1m m\u016f\u017ee poskytnout podrobn\u00e9 informace o va\u0161em konkr\u00e9tn\u00edm je\u0159\u00e1bu.<\/li>\n<\/ul>\nZ\u00e1v\u011brem lze \u0159\u00edci, \u017ee kalibra\u010dn\u00ed v\u00fdpo\u010dty pro je\u0159\u00e1bov\u00e1 kola jsou d\u016fle\u017eit\u00fdm krokem k zaji\u0161t\u011bn\u00ed bezpe\u010dn\u00e9ho a efektivn\u00edho provozu va\u0161eho stroje b\u011bhem provozu. Pochopen\u00edm kl\u00ed\u010dov\u00fdch parametr\u016f a spr\u00e1vn\u00fdm pou\u017eit\u00edm vzorc\u016f m\u016f\u017eete efektivn\u011b ur\u010dit d\u016fle\u017eit\u00e9 informace, jako je pr\u016fm\u011br kola a profil zat\u00ed\u017een\u00ed kola, kter\u00e9 jsou vhodn\u00e9 pro v\u00e1\u0161 je\u0159\u00e1b, a zlep\u0161it tak efektivitu a bezpe\u010dnost va\u0161ich technick\u00fdch operac\u00ed.\n\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Je\u0159\u00e1b je d\u016fle\u017eit\u00fd stroj\u00edrensk\u00fd stroj pro manipulaci s materi\u00e1lem, jeho oblasti pou\u017eit\u00ed jsou pom\u011brn\u011b \u0161irok\u00e9. Zahrnuje lidskou v\u00fdrobu a \u017eivot, pr\u016fmyslov\u00e9 a t\u011b\u017eebn\u00ed podniky, v\u00fdstavbu n\u00e1rodn\u00ed obrany, letectv\u00ed a mnoho dal\u0161\u00edch aspekt\u016f. Je\u0159\u00e1bov\u00e1 kola jako sv\u016fj pochoz\u00ed mechanismus p\u0159i realizaci prvk\u016f m\u00e1 n\u00e9st pracovn\u00ed zat\u00ed\u017een\u00ed za\u0159\u00edzen\u00ed a realizovat [\u2026]","protected":false},"featured_media":4806,"parent":0,"menu_order":0,"template":"single-blog.php","posts_category":[189],"posts_tag":[62],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/4936"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/4936\/revisions"}],"predecessor-version":[{"id":6121,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/4936\/revisions\/6121"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media\/4806"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media?parent=4936"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_category?post=4936"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=4936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}